Does anyone have good knowledge regarding the lip filler treatment cycle?

After work yesterday, I stopped by Maypure and got lip fillers, something I’ve really wanted to do for a long time. My lips are naturally very thin and severely asymmetrical, so they didn't look pretty whenever I applied lip products. But after the procedure, they look plump and full, and the corners of my mouth have lifted slightly, so I really love the shape.

I feel absolutely ecstatic because everyone around me compliments how my whole vibe has completely changed just from my lips. However, although the director explained it to me, I forgot, so I am posting this question. I am wondering how often I should typically visit for touch-ups or re-treatments to maintain this beautiful shape.

Although I understand that hair loss varies depending on individual constitution, please share some tips on how to properly refill it periodically—roughly every few months—to ensure it stays in a nice shape for a long time without losing its appearance. I look forward to your valuable comments.